Hollow Steel Bolt
(Dead Drop Device)
This 5/8" diameter steel bolt has been hollowed out, and
has a threaded, removable head.  During the "Cold War",
devices like these were used to transfer messages and
microfilms between two individuals without the need for
them to meet.  The bolt was left in an inconspicuous
location, such as on a bridge or automobile where it would
be replaced with an original bolt.
To order this bolt, please
see our
Products Page